Semi-fluidized aquatic plant purification bed

Abstract

The utility model discloses a semi-fluidized aquatic plant purification bed which comprises a main tank body and a water outlet tank, the main tank body and the water outlet tank are separated by a partition wall, the main tank body comprises main body filler and hydroponic plants, and the hydroponic plants are planted on the main body filler; the water inlet is formed in the bottom of the main tank body; the partition wall comprises a water outlet, and the water outlet is located at the top of the main body filler in the height direction; the overflow port is located above the water outlet, and the main tank body is communicated with the water outlet groove through the water outlet and the overflow port. According to the plant purification bed, sewage purification and washing and self-cleaning of the purification bed are achieved in an integrated unit construction mode, and the service life of the plant purification bed is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of artificial wetland water treatment, in particular to a semi-fluidized aquatic plant purification bed. Background Art

[0002] Constructed wetlands are artificial ecosystems that simulate natural wetlands. They are surface water bodies similar to swamps that are artificially constructed and controlled. Similar to natural swamps, they are a technology that mainly uses the physical, chemical, and biological synergistic effects of soil, artificial media, plants, and microorganisms to treat sewage and sludge.

[0003] Traditional constructed wetlands or slow filters are prone to clogging and difficult to recover from, significantly impacting their lifespan. Using lightweight fillers in constructed wetlands poses challenges in supporting wetland plants. Furthermore, after cleaning or overhauling a lightweight filler wetland, the plants need to be replanted, increasing costs and causing significant inconvenience.

[0004] The prior art CN213865854U discloses a composite vertical flow artificial wetland structure with ecological protection function, including a reaction tank arranged at the bottom of a sewage treatment equipment; the sewage treatment equipment is connected to a sewage treatment station through a water collection pipe, and a plurality of biofilm layers are vertically arranged in the reaction tank; the biofilm layer is arranged in the reaction tank through a fixed outer frame; a through groove is provided at the bottom of the reaction tank; a backwash pipeline is buried in the barrel tank; a backwash water outlet enclosure is provided on the inside of the reaction tank; the backwash water outlet enclosure is connected to a backwash water outlet; and the backwash pipeline is connected to the pump body.

[0005] The prior art CN216764465U discloses a vertical upward flow artificial wetland structure that is anti-congestion and easy to flush, including a planting soil layer, a perforated outlet pipe, spherical or cylindrical fillers, tubular fillers, a supporting grid, a flushing trough, an inlet pipe and a flushing drain pipe; a flushing trough is excavated below the spherical or cylindrical fillers and the tubular fillers, and the water level in the flushing trough gradually increases with the water inlet amount of the inlet pipe and flows vertically upward through the purification of microorganisms on the spherical or cylindrical fillers and the tubular fillers. The purified sewage can flow out through the perforated outlet pipe, and the sewage and impurities in the wetland accumulate in the flushing trough and can flow out of the artificial wetland structure by opening the valve of the flushing drain pipe.

[0006] None of the above technical solutions involve using artificial wetlands with lightweight fillers to solve the above problems.

[0007] In view of the above technical problems, the present utility model is introduced. Summary of the Invention

[0008] The main purpose of the utility model is to provide a semi-fluidized aquatic plant purification bed for extending the operating life of a lightweight filler artificial wetland and solving various problems in plant planting.

[0009] In order to achieve the above-mentioned purpose, the utility model proposes a semi-fluidized aquatic plant purification bed, including a main pool body and a water outlet trough, the main pool body and the water outlet trough are separated by a partition wall, the main pool body includes: a main filler and hydroponic plants, the hydroponic plants are planted on the main filler; a water inlet, the water inlet is arranged at the bottom of the main pool body; the partition wall includes: a water outlet, the water outlet is located at the top of the main filler in the height direction; an overflow, the overflow is located above the water outlet, and the water outlet and the overflow both connect the main pool body and the water outlet trough.

[0010] Furthermore, the opening area of ​​the overflow port is more than ten times the opening area of ​​the water outlet.

[0011] Furthermore, the opening shape of the water outlet is hole-shaped, and the position of the water outlet along the height direction is not lower than the top surface of the main filler.

[0012] Furthermore, the opening shape of the overflow port is rectangular.

[0013] Furthermore, the water inlet is located below the main body filler in the height direction, and a water inlet orifice plate with a porous structure is provided below the main body filler, and the bottom of the water inlet orifice plate is connected to the water inlet.

[0014] Furthermore, a perforated water inlet pipe is provided at the bottom of the main filler, the perforated water inlet pipe is connected to the water inlet, and a gauze is applied on the outside of the perforated water inlet pipe.

[0015] Furthermore, a filtering device is provided in the water outlet trough, and the filtering device is located between the water outlet and the overflow outlet in the height direction.

[0016] Furthermore, the filtering device includes an intercepting screen with a porous structure, and the intercepting screen is horizontally placed at the bottom of the overflow port.

[0017] Furthermore, the main filler is one or more of EVA sponge, polyurethane sponge, and fiber balls.

[0018] Furthermore, the main filler is granular, and the particle size ranges from 1 to 3 cm.

[0019] The application of the technical solution of the utility model achieves at least the following beneficial effects:

[0020] 1. The purification bed of the utility model solves the problem that traditional artificial wetlands are easy to clog and difficult to recover after clogging by designing water outlets and overflow ports set at intervals and utilizing the characteristics of the main filler in a fluidized state. It uses an integrated unit structure to achieve sewage purification and flushing and self-cleaning of the purification bed, thereby extending the operating life of the plant purification bed.

[0021] 2. The purification bed of the utility model is provided with a filtering device, which saves the trouble of manually collecting fallen leaves when the purification bed is flushed and self-cleaned.

[0022] 3. The purification bed of the utility model adopts low ground cover, shallow root system, fine root system hydroponic plants in combination with granular lightweight main filler, which solves the problem of support and harvesting of wetland plants in artificial wetlands with lightweight fillers, and also solves the problem of wetland plants needing to be replanted after cleaning and overhaul of artificial wetlands with lightweight fillers.

[0023] 4. The purification bed of the utility model realizes uniform water inflow to the purification bed by setting up various forms of water inflow without affecting the main filler. The planted plants absorb pollutants in the water and increase the activity of microorganisms, and have a good purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting part of the present invention are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 shows an elevation view of the purification bed of Example 1;

[0026] Figure 2 Shown Figure 1 AA surface view;

[0027] Figure 3 An elevation view of the purification bed of Example 2 is shown.

[0028] The above drawings include the following reference numerals:

[0029] 1. Main tank body; 2. Water outlet; 3. Partition wall; 4. Main filler; 5. Overflow port; 6. Water outlet; 7. Hydroponic plants; 8. Water inlet; 9. Water inlet orifice plate; 10. Perforated water inlet pipe; 11. Intercepting screen. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] The present invention is further described in detail below with reference to specific embodiments. These embodiments are not to be construed as limiting the scope of protection claimed by the present invention. The term "including" when used indicates the presence of a feature, but does not exclude the presence or addition of one or more other features; the terms "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for ease of description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be construed as limiting the present invention; in addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance.

[0032] In this description, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0033] Example 1:

[0034] The utility model proposes a semi-fluidized aquatic plant purification bed, such as Figure 1 As shown, the main tank body 1 and the water outlet trough 2 are separated by a partition wall 3. The main tank body 1 includes a main filler material 4 and hydroponic plants 7, which are planted on the main filler material 4. The main tank body 1 also includes a water inlet 8, which is located at the bottom of the main tank body 1. The partition wall 3 includes a water outlet 6, which is located at the top of the main filler material 4 in the vertical direction. The main tank body 1 also includes an overflow port 5, which is located above the overflow port 5. The water outlet 6 and the overflow port 5 both connect the main tank body 1 and the water outlet trough 2.

[0035] The depth of the purification bed is 1 to 4 meters, and a lightweight filler with a density similar to that of water and slightly heavier than water is used as the main filler. Preferably, the main filler 4 is one or more of EVA sponge, polyurethane sponge, and fiber balls.

[0036] The main filler is granular, and its shape is spherical, square or special-shaped, etc. Preferably, the particle size of the main filler 4 ranges from 1 to 3 cm.

[0037] The water flow in the purification bed is bottom-in and top-out. During routine operation, the flow rate is low, and the main filler 4 is gravity-compacted, filtering the incoming water. The hydroponic plants 7 absorb pollutants and enhance microbial activity. During self-cleaning operation, the flow rate is high, and the main filler 4 is fluidized. Suspended matter trapped in the filler 4 is discharged through the outlet 6 and overflow 5.

[0038] In the present invention, the opening area of ​​the overflow port 5 is more than ten times the opening area of ​​the water outlet 6. In order to realize the functions of the water outlet 6 and the overflow port 5 respectively. Figure 2 As shown, the opening shape of the water outlet 6 is a hole, and the position of the water outlet 6 along the height direction is not lower than the top surface of the main filler 4. The opening shape of the overflow port 5 is a rectangle.

[0039] The purification bed of the utility model solves the problem that traditional artificial wetlands are easy to clog and difficult to recover after clogging by designing water outlets and overflow ports set at intervals and utilizing the property that the main filler can be in a fluidized state. It uses an integrated unit structure to achieve sewage purification and flushing and self-cleaning of the purification bed, thereby extending the operating life of the plant purification bed.

[0040] like Figure 1 As shown, water inlet 8 is located vertically below the main packing 4. A porous water inlet plate 9 is located below the main packing 4. The lower side of the water inlet plate 9 is connected to the water inlet 8, ensuring uniform water inflow into the purification bed. The pore size of the water inlet plate 9 is smaller than the particle size of the main packing 4, providing good support for the main packing 4.

[0041] Furthermore, a filter device is provided within the outlet trough 2, positioned vertically between the outlet 6 and the overflow 5. When the purification bed is in self-cleaning operation, fallen leaves from hydroponic plants 7 are located in the upper layer of the overflow water and are discharged through the overflow 5. These fallen leaves and branches are intercepted by the filter device to prevent them from affecting drainage from the outlet trough. The filter device eliminates the need for manual collection of fallen leaves during the self-cleaning process.

[0042] Preferably, the filtering device adopts an intercepting screen 11 with a porous structure, and the intercepting screen 11 is horizontally placed at the bottom of the overflow port 5.

[0043] Preferably, the hydroponic plants 7 are low-growing groundcover plants with shallow, fine root systems, such as pennywort, pink-green foxtail algae, and giant purple-rooted water hyacinth. Although some plants may shift relative to the bulk filler 4 after fluidization, they can quickly adapt and regrow, making harvesting easier.

[0044] The purification bed of the utility model solves the problem of support and harvesting of wetland plants in artificial wetlands with lightweight fillers by using low ground cover, shallow root system, and fine root system hydroponic plants in combination with granular lightweight main fillers. It also solves the problem of wetland plants needing to be replanted after cleaning and overhaul of artificial wetlands with lightweight fillers.

[0045] Example 2:

[0046] The utility model proposes a semi-fluidized aquatic plant purification bed, such as Figure 3 As shown, the main tank body 1 and the water outlet trough 2 are separated by a partition wall 3. The main tank body 1 includes a main filler material 4 and hydroponic plants 7, which are planted on the main filler material 4. The main tank body 1 also includes a water inlet 8, which is located at the bottom of the main tank body 1. The partition wall 3 includes a water outlet 6, which is located at the top of the main filler material 4 in the vertical direction. The main tank body 1 also includes an overflow port 5, which is located above the overflow port 5. The water outlet 6 and the overflow port 5 both connect the main tank body 1 and the water outlet trough 2.

[0047] The depth of the purification bed is 1 to 4 meters, and a lightweight filler with a density similar to that of water and slightly heavier than water is used as the main filler. Preferably, the main filler 4 is one or more of EVA sponge, polyurethane sponge, and fiber balls.

[0048] The main filler is granular, and its shape is spherical, square or special-shaped, etc. Preferably, the particle size of the main filler 4 ranges from 1 to 3 cm.

[0049] The water flow in the purification bed is bottom-in and top-out. During routine operation, the flow rate is low, and the main filler 4 is gravity-compacted, filtering the incoming water. The hydroponic plants 7 absorb pollutants and enhance microbial activity. During self-cleaning operation, the flow rate is high, and the main filler 4 is fluidized. Suspended matter trapped in the filler 4 is discharged through the outlet 6 and overflow 5.

[0050] In the present invention, the opening area of ​​the overflow port 5 is more than ten times the opening area of ​​the water outlet 6. In order to realize the functions of the water outlet 6 and the overflow port 5 respectively. Figure 2 As shown, the opening shape of the water outlet 6 is a hole, and the position of the water outlet 6 along the height direction is not lower than the top surface of the main filler 4. The opening shape of the overflow port 5 is a rectangle.

[0051] The purification bed of the utility model solves the problem that traditional artificial wetlands are easy to clog and difficult to recover after clogging by designing water outlets and overflow ports set at intervals and utilizing the property that the main filler can be in a fluidized state. It uses an integrated unit structure to achieve sewage purification and flushing and self-cleaning of the purification bed, thereby extending the operating life of the plant purification bed.

[0052] like Figure 3 As shown, the water inlet 8 is located vertically below the main body packing 4. A perforated water inlet pipe 10 is installed at the bottom of the main body packing 4, connecting to the water inlet 8 and covered with a mesh. The perforated water inlet pipe 10 passes through the bottom of the main body packing and is evenly distributed with multiple holes. A mesh is applied to prevent particles of the main body packing from entering the perforated water inlet pipe 10. The main body packing 4 is directly supported by the bottom of the main tank body 1. This design ensures uniform water inflow to the purification bed without affecting the main body packing.

[0053] Furthermore, a filter device is provided within the outlet trough 2, positioned vertically between the outlet 6 and the overflow 5. When the purification bed is in self-cleaning operation, fallen leaves from hydroponic plants 7 are located in the upper layer of the overflow water and are discharged through the overflow 5. These fallen leaves and branches are intercepted by the filter device to prevent them from affecting drainage from the outlet trough. The filter device eliminates the need for manual collection of fallen leaves during the self-cleaning process.

[0054] Preferably, the filtering device adopts an intercepting screen 11 with a porous structure, and the intercepting screen 11 is horizontally placed at the bottom of the overflow port 5.

[0055] Preferably, the hydroponic plants 7 are low-growing groundcover plants with shallow, fine root systems, such as pennywort, pink-green foxtail algae, and giant purple-rooted water hyacinth. Although some plants may shift relative to the bulk filler 4 after fluidization, they can quickly adapt and regrow, making harvesting easier.

[0056] The purification bed of the utility model solves the problem of support and harvesting of wetland plants in artificial wetlands with lightweight fillers by using low ground cover, shallow root system, and fine root system hydroponic plants in combination with granular lightweight main fillers. It also solves the problem of wetland plants needing to be replanted after cleaning and overhaul of artificial wetlands with lightweight fillers.

[0057] In summary, from the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0058] 1. The purification bed of the utility model solves the problem that traditional artificial wetlands are easy to clog and difficult to recover after clogging by designing water outlets and overflow ports set at intervals and utilizing the characteristics of the main filler in a fluidized state. It uses an integrated unit structure to achieve sewage purification and flushing and self-cleaning of the purification bed, thereby extending the operating life of the plant purification bed.

[0059] 2. The purification bed of the utility model is provided with a filtering device, which saves the trouble of manually collecting fallen leaves when the purification bed is flushed and self-cleaned.

[0060] 3. The purification bed of the utility model adopts low ground cover, shallow root system, fine root system hydroponic plants in combination with granular lightweight main filler, which solves the problem of support and harvesting of wetland plants in artificial wetlands with lightweight fillers, and also solves the problem of wetland plants needing to be replanted after cleaning and overhaul of artificial wetlands with lightweight fillers.

[0061] 4. The purification bed of the utility model realizes uniform water inflow to the purification bed by setting up various forms of water inflow without affecting the main filler. The planted plants absorb pollutants in the water and increase the activity of microorganisms, and have a good purification effect.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A semi-fluidized aquatic plant purification bed, comprising a main pool body (1) and a water outlet trough (2), wherein the main pool body (1) and the water outlet trough (2) are separated by a partition wall (3), characterized in that: The main pool body (1) comprises: a main body filler (4) and a hydroponic plant (7), wherein the hydroponic plant (7) is planted on the main body filler (4); and a water inlet (8), wherein the water inlet (8) is arranged at the bottom of the main pool body (1); The partition wall (3) comprises: a water outlet (6), the water outlet (6) being located at the top of the main filler (4) in the height direction; an overflow port (5), the overflow port (5) being located above the water outlet (6), and the water outlet (6) and the overflow port (5) both connecting the main pool body (1) and the water outlet trough (2).

2. The clean bed according to claim 1, characterized in that: The opening area of ​​the overflow port (5) is more than ten times the opening area of ​​the water outlet (6).

3. The clean bed according to claim 2, characterized in that: The opening shape of the water outlet (6) is a hole, and the position of the water outlet (6) along the height direction is not lower than the top surface of the main body filler (4).

4. The clean bed according to claim 3, characterized in that: The opening shape of the overflow port (5) is rectangular.

5. The clean bed according to claim 3, characterized in that: The water inlet (8) is located below the main body filler (4) in the height direction. A water inlet orifice plate (9) with a porous structure is provided below the main body filler (4). The bottom of the water inlet orifice plate (9) is connected to the water inlet (8).

6. The clean bed according to claim 3, characterized in that: A perforated water inlet pipe (10) is provided at the bottom of the main body filler (4), the perforated water inlet pipe (10) is in communication with the water inlet (8), and a gauze is applied to the outside of the perforated water inlet pipe (10).

7. The clean bed according to any one of claims 1 to 6, characterized in that: A filtering device is provided in the water outlet trough (2), and the filtering device is located between the water outlet (6) and the overflow outlet (5) in the height direction.

8. The clean bed according to claim 7, characterized in that: The filtering device comprises an intercepting screen (11) having a porous structure, and the intercepting screen (11) is horizontally placed at the bottom of the overflow port (5).

9. The clean bed according to any one of claims 1 to 6, characterized in that: The main filler (4) is one of EVA sponge, polyurethane sponge and fiber balls.

10. The clean bed according to claim 9, characterized in that: The main filler (4) is granular, and the particle size ranges from 1 to 3 cm.

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